Furnace-door.



L. L. KNOX,

PURNAOE DOOR...

APPLxcATxoN FILED AUG. 1s, 1912.

Patented July 14, 191.4u

VJITNES'SSES f5 new' and useful inipiovemeiit e weinigen seem oi? emmemmmiie.

Be it known time L llie'rem' liiie resident oilliles, in yElie County of rirumbull and State of Gmo., have inveiieol e in Fumanee. full? door,

Doors, of which the following is; :in exact desei'iptlon, reference being hei to the accompanying drewmgs, 'mit of this specification, in Wliieii-f- Figure l is e from View of one form of furnace door embodying my inveiieion; 2 is e similei" View of showing a irioiioetiong'lg. ie i seein/on on the line EKL-Hl of l; fl e section on elle line iL-VM 'n :mil

Fig. 5 is im end View pzuijiy beeilen :away of the saddle i'nembei of F Ye. l sind. to furnace doors7 emi more peitioulesiy fco weeieeooled.

l which are moet liable o .injury furnace doors which ere povieled with polie openings therethi'ougii. ese Water-cooled doors are usually mede of Welded metal sheets :incl being eompemively thin, are wom by the opereision of ilie poker Woiekii'igg through the polie opening. They are also apt to be injuifeil by ille Contact @if the poker therewith in iiitfodizeing ii; imo the dooie.

My inveneion provides means of simple and eilfeeive character o protecting those portions of elle wells otlie poke openings Referring iei; to elle eoneuotion shown in Figs. l and 3, numeizil 2 clesigeaes hollow' Weizeeoole l Sliee metal furnace doei.1 body., 3 is a Water supply pipe extending (lowiiwerdly into loof from the connecion 3@ exiil'temineeing in e tiene` Verse spray arm i@ ai; tile lower inwardly ose'' portion of the door. ilesigneters the otake connection foi the heate Weiten The numeral 6 designates poke opening' lug 'il the. lower Wall formed thioughtlie door body This einem ing is preferably :formed with beveled Wall S clesif'eaee e piioteeting saddle which may be oi: ease ii-on oi' ohei suitable mafse'riel miel Weich is eeptefl eo be inseitecl and sent/eel. in elle lewe? poiion of he'poke opening., shown in Fine. l and 3. The Saddle memliei is pi'eiei bly V shaped oi' depressed. on. its 'opper surface, as inclienel ai; 8 amil is piovicleci with elle flange :l lt is also Shown as owing in. its bottom e notoli il), io i'eeeive e projecting; of the opening. l2

esiffieees a, piveed. butiel'fy closure which e., portion oi o cime ille (l ouillebe moved iii position to close o1' iuelose elle polie opeiiize. The opening G is nai'- 'lowef et bottom iban-et *die iop` amil. eine serielle 8 le of eoireepoiiding iiedge shape. ln. orelei to sem seid szidle, it is eo twee@ en edge and ineeited into the upper ooifioii oi lie opening; 5, l; is then tumecl W nin opening and dropped iowli into proper posiion. The engagement of Ythe lug; with lie ilozeii l0 holds the saddle to e5 its place. when lle saddle member lieeomeo were oi: injured? ieedily 'oe ref moved oi' reeleeed b e :ne f one. les use wiz" if; of f imeiiee door.,

Weel/ee ell'ihe vom m 'elle poker. ICL

, 5i have shown the epilee, of my iiiveoio'n to anohei form fooi1 which ie peoviilecl with the ineee i. i3, nl polie opening 6a.

being oi ieezmgulei' ioim. En this', '31o he sedle meoiiiei i4 le aci pted to i lower po 9 iin me ii'oii 4"elle eotangulei' opeiiiig; and isn femme/el.' with @he inwardly pojeemg retaining portion i5, which enihe 'beveled 'Wall 16 of the inset poieo tion of the poke opening. f', A

ln alie eonetiueioo Shown in Figs. l and. 3 Il pfei'ei izo iren, assemble the various parte, enel alien 'form loe opening 6, by pressing the sheet-s eeoli oiliei? eo foim the lou- 85 ble beveled w lle Y. ellen eut out the metal bizweee i e Wells7 sind weld the. sheets to e'ecifi @they die jiiiie'cioo. of lie bei/ele` l' noi, limi; myselif ige 'the use of proieeting; memlaeis of? the pmfiieuler' form 9o whichr l lieve liei'eiii shown and cleseiilveci, es il. will 'be obvious lie?, liey may be made el various foune? according; iio the size and shape of the poke openingend of the chai'- A fum/ieee door hei/ieg e poke opening elierehioeigli encl e pioeeiiig memlie removabiy Seated in seid opening, said membei' comprising meelfioocly which extends Oo across and iills the lower poet-ion of mid opening 'die gifle poiione of said body also extending upwardly' ebojve iis ee'etfal poialso having side portions which extend up Warolly above saicl recess, emi protect the lower portion of the side Walls of seid opening, substantiallyv es described.

3. The combination with a furnace door having e polie opening therethrough, of a. removable member seated in tbe lower porn tion of said opening, said member having e flange at its outer end which ebuts glie outer surface of the door adjacent to the opening, substantially as described.

4. A sheet metal Water-cooled furnace' 'door having e poke opening therethrough, said opening' having' its 'walls .formed with a double bevel, and e vproteoiing; member seated on the lower Woll of said opening and having a V-slinpecl groove lierein to t the doublebevel oi' said Wall; substantially as described.

5. The combination with e furnace eloor having a; poke ripening therethrough, said opening bein oless' transverse Width at its lower portion thonet its upper ofv seated in the lower porti u portion of said opening and forming o rest for a poker or the like7 said member and tlielower portion of the opening having interiitt-ing portions which prevent enflwise movement'J of the ineinber in the opening, andYsa-id member being insertible into :incl removable from the upper portion of said opening when turned into en endwise position, substantially as olescribed. y j

In testimony, whereof, I have hereuntoset 35' .my hand.' l e. l LUTHER L. KNOX. Witnesses: i

GEO. B2 BLEMIIIG,

R. A.y 'BALDERSON a, protecting .member vof Wedge shape 

